I believe that it creates shocks to try and start the heart up again after a heart attack. (why the sticky pads are put with the heart in the middle)
When a person smokes a cigarette, the body responds immediately to the chemical nicotine in the smoke. Nicotine causes a short-term increase in blood pressure, heart rate, and the flow of blood from the heart. It also causes the arteries to narrow. Carbon monoxide reduces the amount of oxygen the blood can carry.
I think it’s the first one
In 1900, communicable diseases, like pneumonia, TB, influenza, chicken pox, and polio, were the most common causes of death. However, with the development of medicine, and vaccines, now In 2006, lifestyle diseases, like cancer, heart disease, and stroke, were the most common causes of death.
